2007 Yaris Sedan - Factory Oil ?

Question

What weight/viscosity do they originally put in the crankcase ? Is it sort of "break-in" oil that has to be drained sooner, than "normal" oil @ regular intervals ? Service mgr. in the dealership, where I purchased my Yaris 3 weeks ago was apparently playing an idiot. He said - look on top of the oil cap in the engine compartment: it should say, what oil is recommended. I know it's BS - my book says " 5W-30", so does " the cap" but the newest TSB for Yaris says "5W-20", and some folks on NGs even recommend 0W-30 synthetic........ kd

duszkiew · Accepted Answer

sorry, the last line should read : ......."0W-20"

duszkiew · Answer

sorry, Google is screwing me as it usually does :)

Ray O · Answer

Toyota does not use "break-in" oil or oil that has to be drained sooner than normal.

I have not seen the TSB that you referenced, but it probably lists when the factory fill changed over to the new viscosity, if at all.

GO Mavs · Answer

I placed 5 W 30 in mine. I live in Dallas...

Must be Me · Answer

I thought the whole reason for using multi-grade oil was so that you could use one oil all year, regardless of the temperature???

5w30 oil is supposed to have the same viscosity as single-weight 5w oil at cold temperatures and 30w oil at high temperatures. Also wouldn't 0w oil have the same shear characteristics as water?

I think you're right about the so-called "break-in oil". No car manufacture uses that today. Even when it was used, it wasn't really a "special" oil, just a light weight oil that would allow the high spots to wear down faster.

Jack

Jeff · Answer

The whole reason is that the engine, even on the hottest days of summer is operated at various temperatures, like from 110 F to parts that get up to maybe 300 F (I am just guessing). So even on the hottest days, you have a range of temperatures that the oil operates in. Multiviscosity oil lets the oil work properly at a variety of operating temperatures.

Even in summer, you need an oil that operates at a range of temperatures (or, I guess you can preheat the oil and engine before starting it up).

Of course, during winter, the range is even greater (maybe -20 F to 300 F).

2007 Yaris Sedan - Factory Oil ?

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